Enobio
Enobio is a wearable, modular and wireless electrophysiology sensor system commercialized by the Starlab Barcelona spinoff Neuroelectrics for the recording of
- EEG (Electroencephalogram - brain activity)
- ECG (Electrocardiogram - heart activity) and
- EOG (Electrooculogram - eye movement). Application areas include research, biometry, Brain–computer interface, vigilance monitoring and biofeedback for virtual reality.[1]
Enobio was developed by the company Starlab Barcelona SL and was released in June 2009 .
Enobio is now available in 8, 20 and 32 channels from Neuroelectrics, who also commercializes the companion product Starstim (wireless EEG and transcranial stimulation).
Technical specifications of the first version of Enobio (2009)
| Features | |||
|---|---|---|---|
| Number of Channels | 4 | Input | Biopotentials (EEG, ECG, EMG) |
| Output | Digital streaming over TCP/IP. Raw data files- ASCII output and EDF compliant. |
Sampling | 16 bit sampling at 250 S/s |
| Bandpass | 0 to 50 Hz | DC Offset | Automatic offset compensation for each channel |
| Wireless communication | IEEE802.15.4 PHY | Data rate | Up to 128000 bit/s |
| Dimensions | 660x550x250 mm | Weight | 65 g |
| Operating time | 4 hours four channels at maximum sampling rate | Charging time | 1 hour |
| Operation range | -40°C to +125°C | ||
| Analog | |||
| Analog Channel gain | 70 | CMRR | 96 dB |
| Input Referred Noise | 32 nV/√Hz (<10µVrms 0.1–100 Hz for electrode) | Low Frequency Noise | 0.3 µV p-p (f = 0.1 Hz to 10 Hz) |
| EMI filter | 40 kHz | Anti-aliasing filter | 30 Hz |
| Input Voltage Range | 0.5 V to 1.6 V | Maximum Range Input Voltage | -0.3 V to 3.0 V |
| Digital | |||
| Quantisation [bits] | 16 SAR ADC | No Missing Codes | 15 bits typical |
| Resolution | 700nV | Dynamic Range | 150dB |
| Signal-to-Noise Ratio | 83 dB min | Sampling rate [Hz] | Up to 250S/s - 4 channel |
| Power | |||
| Enobio Interface (electrode) | ≈6 mW | ENOBIO SCM | ≈20 mW four channel full rate |
| Battery | Rechargeable Lithium Polymer | Battery Capacity | 610mAh |
| Nominal Voltage | Rechargeable Lithium Polymer | Charger | 100-240V, 50/60 Hz |
| Charging Cycles | >500 | ||